mytest:mytest.c
	gcc -o $@ $^ -I./lib -L./lib -lmymath #这里只是告诉了编译器头文件和库路径在哪里
.PHONY:clean 
clean:
	rm -f mytest

#mytest:mytest.c
#	gcc -o $@ $^ -I./output -L./output -lmymath
#.PHONY:clean
#clean:
#	rm -f mytest
